[GreenKeys] WU 9797 LESU Jacks TR or TS?

[Nick England]

>From the manual-

*"NOTE: Anyone patching or unpatching circuits from a TTY panel must be
sure to pull the plug from the looping jack (LPG) before removing the other
plug from the SET (machine) jack. Pulling the SET jack first interrupts all
TTY message traffic on that channel. IT ALSO PRODUCES A DANGEROUS DC
VOLTAGE ON THE EXPOSED PLUG!"*

On Fri, Dec 2, 2022 at 9:46 PM W2HX <w2hx at w2hx.com> wrote:
> Gives new meaning to the word “spacing”
> 73 Eugene W2HX
>
> From: Jeffrey Golas <jeffg at junknet.net>
> Speaking from enlightening experience, no safety involved ;-) Silly me
plugged in a loop the other day, and for a split second I was part of the
loop.
>
> Jeff KC3GJX
>
> On Dec 2, 2022, at 9:28 PM, W2HX <w2hx at w2hx.com> wrote:
> Aaah ok. That probably explains things. For some reason I had it in my
head that the TRS were used to provide some measure of safety where the
sleeves weren’t used. That is how I did my jack field but now I know
better. Thanks!
> 73 Eugene W2HX
>
> From: Nick England <navy.radio at gmail.com>
> Use only a 2-conductor plug - tip/sleeve.
> None of this new-fangled TRS stuff like on your Koss Pro/4 stereo
headphones
> Nick K4NYW
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